Loose-leaf binder.



No. 829,240. PATENTED AUG. 21, 1906,

' E. A. TRUSSBLL.

LOOSE LEAF BINDER.

APPLICATION FILED MAY23,1904.

2 SHEETS-SHEET l.

I 8 mlllllllllifil PATENTED AUG. 21, 1906.

E A. TRUSSBLL. LOOSE LEAF BINDER.

APPLICATION FILED HAY23,1904.

2 SHEETS-SHEET 2.,

V t w UNITED STATES PATENT OFFICE.

EMORY A. TRUSSELL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO SIEBEB. & TRU'SSELL MFG. 60., A CORPORATION OF MTSSOQRI.

LOOS E LE AF BINDE R.

Patented Aug. 21, 1906.

Application filed May 23,1904. Serial No. 209,308.

To all whom it may concern.-

Be it known that I, EMORY A. TRUssELL, a citizen of the United States, and a resident. of the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Loose-Leaf Binders, of which the following is a specification and which are illustrated in the accompanying drawin s, forming a part thereof.

This invention relates to that type of looseleaf binders which are expansible and are commonly known as telesco ic, in which the sides are adjustablv spaced. apart and the back is formed of overlap )ing plates extending inwardly from each side, expansible posts or rods being employed to which the sheets to be bound are attached and some form of locking mechanism being employed for fixing the binder at its adjusted positions.

The invention is shown as applied to the tiype of binder forming the subject of Letters atent No. 737,005, granted to Charles R. Nelson, August 25, 1903, in which the adjustability isdetermined by a ratchet-bar attached to one of the members of the back,

ratchet-blocks running on the bar, and links connecting such blocks with the other member of the back.

The object of this invention is to provide for the extension of the back by the addition to one or both of its adjustable plates other plates for carrying the sides of the binder. This object is attained by the structure hereinafter described, and which is illustrated in the accompanying drawings, in which Figure 1 is an inside elevation of the binder, partly broken away to show internal con struction. Fig. 2 is a detail section on the line 2 2 of Fig. 1. Fig. 3 is a detail section on the line 3 of Fig. 1. Fig. 4 is a detail of certain screws used in the device. Fig. 5 is an end View of the invention in one of its forms. Fig. 6 is a detail in perspective of one of the supplemental or additional wings adapted to be secured to the back for increasing the width of the binder, and Fig. 7 is a sectional view on the line 7 7 of Fig. 1.

The binder consists rimarily of the overlapping or telescopicall ongaging plates 10 11 and the side members 12 13, which may be attached directly thereto, as shown in Fig. 5, and when so made follows the construction of the Nelson patent above referred to or many other well-known binders of this class.

The controlling and securing mechanism illustrated comprises an oscillatable ratchet shaft 14, having teeth on one side and being journaled in the upturned ends 15 16 of the plate 11, the ratchet-blocks 1.7 18 sliding thereon and provided with any suitable form of pawl (not shown) and the links 19 20 connecting the blocks 17 1.8 with the plate 10. These features are all found in the Neison patent referred to, and in that instance the sides 12 and 13 are secured to the back plates 10 and 1] differing from the structure shown in Fig. 5 of the accompanying drawings only in the form of the attachment. In the present case the telescoping rods forming the carrying means for the sheets to be bound are sup ported not from the side plates, as in the Nelson patent,but from the back plates. To this end they are provided with lateral shanks resting upon and secured to the plates 10 and 11. Preferably each of these rods, as 21 22, is made of a single sheet of metal doubled upon itself, the portion adjacent to the fold being brought to the form of a cylindric bulb, and the portions projecting from the tube thus formed, and indicated at 23 24, are brought together to form the shank portion, their ends, however, being turned outwardly at right angles to form feet 25 26, which rest u )on the plates 10 and 11 and serve as means of attachment thereto by the use of rivets or the equivalent thereof. These shanks are of less width than the length of the rod, thereby providing 'for the telescopic engagement of the rods 21. 22, and the larger of the rods being in the form of a split tube will receive the shank of the smaller one in its slot when the back plates are close together. One of the plates, as 10, that one which engages the inner face of its companion, is cut away, as shown at 27, to receive the foot portions of the rods secured to the other plate, and these parts 25 26 have their ed es offset upwardly, so as to form guidcways for the edges of the apertures 27, as shown at 28.

Within the outer end of each of the rods 21 22 there is fixed a filling-block 21), which is rovidcd with a threaded socket, the sockets of all of the blocks being preferably of uniform here, and the sides 12 13 are secured to the rods by means of the screw-bolts 30, set thcrcthrough and entering the sockets of the blocks 29.

As thus described the device is complete so far as illustrated in Fig. 5 and as to the central portion of Fig. 1.

The binder may be increased in. width by the introduction between either side 12 13 and the ad jaeent plate 11 of an extension back plate 3 1, provided with sectional rods 32, formed in the same manner as the rods 21. 22, being in tubular form and having the shank portions 33 and the foot portions 34 riveted or otherwise secured to the plate 3]. These extensiondates are secured to the rods 21 or 22 by t e use of screw-bolts 35 of suilicient length to pass entirely through the tubes 32 and of suitable size to engage the threaded sockets of the block 29. The screw-bolts have threaded sockets in their heads of the same bore as the sockets of the blocks 29, and the sides 12 13 are secured to said bolts by means of the bolts 30, which have been removed from their original position, as hereinbefore described, and are set through the side plates 12 or 13. The ex tension-sections 31 are preferably provided at their inner edges with offsets 36 to form a rabbet for receiving the edge of the back seetion 10 or 11 to which they are secured. In order to provide for greater rigidity of the hinder when thus increased in width, I preferably secure a tongue-plate 37 between the leaves of each shank 33, projecting it somewhat beyond the inner edge of the shank, the leaves of the shanks of the rods 21 22 being spread apart at their outer edges sufficiently to receive such tongue-plates. Such extension-plates 31 may be inserted between each of the side plates 12 13 and the main 111em bers 10 and 11 of the back, if desired, as shown in Fig. 1, and the binder may thus be built up or enlarged indefinitely either by the introduction of a plurality of extensionplates or of plates of greater or less Width.

I claim as my invention 1. In an extensible loose-leaf binder, in

combination, a pair of relatively adjustable back ')lates; te escoping rods fixed transversely to such plates and having their outer ends internally threaded; side plates adapted For attachn'lent to such rods; an extension back plate having tubular transverse rods adapted to aline with the rods of the lirstnamed plate; screw-bolts extending through the rods of the extension-plate and engaging the threads of the rods with which they are alined, such screw-bolts having their heads socketed and internally threaded; and screwbolts adapted to pass through the side plates and engage the sockets in the heads of the first-named screw-bolts.

2. In an extensible loose-leaf binder, in combination a pair of overlapping relatively adjustable back plates; telesco )ing rods having lateral shanks fixed to such back plates; an extension-plate having tubular rods attached thereto by means of lateral shanks and alining with the rods of the first-named plates; side plates applied to the ends of the rods; and screw-bolts securing the sides to the rods to which they are applied and passing through the rods of the extension-plate into and engaging the rods of the first-111011- tioned plates adjacent thereto.

3. In an extensible loose-leaf binder, in combination, a pair of relatively adjustable overlapping back )lates; telescoping rods having lateral shan is secured to such back plates; an extension-plate having rods attached thereto by means of lateral shanks secured to such plate; and a tongue-plate scoured to the shank of one of the rods of such extension-plate and fitting between the leaves of the shank of a rod of the adjacent plate of the first-named pair.

EMORY A. TRUSSELL.

Witnesses LEONARD VVILeox, EDWIN W. MILLS. 

